S-91771A189 8-32 x 3/16" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws
Stainless Steel Phillips Flat Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
- Exceptional mechanical strength offering 80,000 psi tensile strength and Rockwell B80 hardness for reliable performance under high-stress conditions.
- Precision thread engagement with Class 2A UNC coarse threads ensuring secure fastening and reduced cross-threading risks.
- Optimized flush mounting featuring an 82° countersink angle and undercut flat head design for seamless surface integration.
- Efficient installation with Phillips No. 2 drive providing reliable torque transfer and reduced cam-out during assembly.
- Full threading coverage along the 3/16" length delivers maximum grip and uniform load distribution.
- Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations for global industrial use.
Professional Applications & Engineering Value
This 8-32 UNC flat head screw delivers critical engineering solutions where corrosion resistance and high tensile strength are paramount. The passivated 18-8 stainless steel construction prevents oxidation in moisture-rich environments, while the fully threaded coarse UNC design ensures rapid installation and vibration resistance in machinery, electronics, and automotive assemblies. The undercut flat head profile and 82° countersink angle enable flush mounting in precision applications, eliminating protrusions that could interfere with moving parts. These industrial fasteners are engineered to maintain integrity in demanding applications, from control panels to marine equipment, where Class 2A thread fit guarantees consistent performance across production runs.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 specifications with Class 2A thread fit and UNC coarse threading (8-32 size). Features include 3/16" length, fully threaded design, and 82° countersink angle. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for international industrial supply chains.
